Turntable slide support



TURNTABLE SLIDE SUPPORT Original Filed Oct. 6, 19 38 2 Sheets-Sheet 1 3am Behar INVENTOR.

Hi5 A ttor-ngy Aug. 29, 1944. s. BEHAR TURNTABLE SLIDE SUPPORT Original Filed 001;. 6-, 1958 2 Sheets-Sheet 2 NE W SEE his Attomg iatented Aug. 29, 1944 TURNTABLE SLIDE SUPPORT Sam Behar, Berwyn, Ill., assignor to A. F. Dormeyer Mtg. 00., Chicago, Ill., a corporation of Illinois Original application October 6, 1938, Serial No. 233.541. Divided and this application July 12, 1941, Serial No. 402,204

4 Claims.

The present invention relates to food mixers, and is particularly concerned with electric food mixers of the household type which are also adapted to drive a multiplicity of other food working attachments.

This application is a division of my Patent No. 2,262,912, Serial No. 233,541, filed October 6, 1938, and issued November 18, 1941, for Electric food mixers, reference to which is hereby made for a fuller understanding of the general construction of the food mixer.

One of the objects of the invention is the provision of an improved food mixer construction of the type having a turntable for supporting the bowl, in which the bearing for the tumtable is slidably mounted, so that it may be moved into various difierent positions which are appropriate for bowls of different sizes.

Other objects and advantages of the invention will be apparent from the following description and the accompanying drawings, in which similar characters of reference indicate similar parts throughout the several views.

Referring now to the drawings in which,

Fig. 1 is a side elevational view of an electric food mixer of the household type embodying the invention, with the mixer in the mixin Position on the standard;

Fig. 2 is a vertical sectional view taken on a plane passing through the axis of the motor drive shaft, showing the details of construction of the driving unit for the food'mixer;

Fig. 3 is a fragmentary vertical sectional view of the base, including the turntable, in elevation, and further illustrating this arrangement for the turntable bearing; Y

Fig. 4 is a fragmentary vertical sectional view, taken on the plane of the line 4-4 of Fig.5, looking in the direction of the arrows, showing the mode of retaining the turntable bearing in certain predetermined positions;

Fig. 5 is a bottom plan view of the supportng base for the food mixer, showing the details of construction of the base and a sliding arrangement for the turntable bearing, by means of by a plurality of screws passing through the base and threaded into the standard 33.

The base 32 comprises a cast metal member having a top flange 38 and a depending border flange 39, the latter being provided with a multiplicity of downwardly extending lugs 40, which form legs for the base, and which are provided with internal bores 4| for receiving thereduced cylindrical portion 42 of a rubber foot 43. The area of the base 32 is such that it is adapted to support bowls of any size which are likely to be used, and so that the motor unit 3| is stably supported at all times, and particularly when other attachments are applied to the driving unit. Thus the base 32 extends laterally beyond the end of the driving unit 3|, as shown in Fig. 1, and also at both sides of the driving unit 3|.

Besides the depending border flange 39, it may have a multiplicity of transversely and backwardly extending reinforcing flanges 38 underneath the top flange 38. The bowl 3'! may be of any convenient size, and is preferably of such shape that the heaters 35, 36 may gain access to all parts of the ingredients in the bowl 31.

The bowl 31 has its bottom shaped to fit the cavity in the pressed sheet metal turntable 34, which may also have a second depression 34' formed therein for receiving the base of a smaller bowl. The turntable trunnion 43' may comprise which the turntable bearing may be moved to a metal stand, which, is riveted into the center of the turntable 34 and provided at its bottom with a threaded bore 44 for receiving a threaded bolt 45, having a conical end 46.

. A lock nut 41 holds the bolt 45 in predetermined position so that the adjusted position of the bolt 45 determines the elevation of the tumtable 34 and bowl 3'! with respect to the beater elements 35, 36. Thus the elevation of the turntable may be adjusted so the beater elements extend into the very bottom of the bowl, but are out of contact with the bowl.

The trunnion 43 is adapted to slidably and rotatably engage in a cylindrical bore 48 of a carriage 49, also formed of cast metal, and slidably mounted on the base 32. In order that the turntable trunnion 43 may extend into its bearing 48 in carriage 49, the base is provided with a longitudinally extending slot 50 of sufficient width to clear the trunnion 43, and extending in the direction of the axis of the driving motor 3| on the base 32.

The bottom of the base 32 is provided with a -pair of depending guide ribs 5|, 52, which are provided with flat and parallel guiding surfaces 53, 54, opposite each other, for engaging the complates 88, 88 extending over under the carriage 48, to retain it between the--guide-members 8i and 82.

The carriage 48 comprises a cast metal member which is formed with a flat upper body'flange 88 and a pair of depending parallel border flanges 88, 68. It is also provided with a depending reiniorcing rib M and with the depending lug 82, having the bore 48, previously described, which serves as a bearing for the turntable trunnion 48'.

At its right end (Fig. 3) the carriage 48 is provided with another depending lug 88. having a cylindrical bore 84, which is open at the top and which contains a helical spring 88, the end of which engages a ball 88.

The turntable bearing socket 48 is bordered at the top by an upwardly extending cylindrical flange '81, which extends into the slot 88 of the base 82 and which limits the movement of the carriage 48, as the cylindrical flange 81 is adapted to engage the ends 88 of the slot 88.;

The top flange 88 of base 82 is formed with a pair of depressions 18, 1|, located to receive the ball 88, and the depressions 18, 1i are preferably partially spherical or conical, or provided with tapered walls so that the ball 88 may be cammed downward when the carriage 48 is moved laterally in its guides.

Similarly. when the carriage reaches either of its positions which correspond to the depressions 18, 1i, the b 88 is adapted to snap, into the position 18 or i and retain the carriage in that position. It is possible, of course, to utilize the mixer with the carriage 48 in any of the intermediate positions, but the most frequently used positions are those at the limits of movement of the carriage 48, one of which is for the large bowl and the other of which is for a small bowl.

The proportions of...the bowl and location of the heaters", 88 and carriage 48 are such that when the ball 88 is engaged in depression H the bowl is suitably located, as shown in Fig. 1, for mixture of the ingredients in the bowl by the beaters 88, 88.

The bowl 81 may then be turned by hand in order to. bring all parts of the mixture into ensagement with the beating elements 88, 88, or the beating elements 88, 88 being arranged on a radius of the bowl 81, they may, if the mixture r is stiil enough, cause a reaction through the mixture to the bowl which will cause the bowl to rotate when the heaters are rotated.

When the ball 88 is in the depression 18, the carria e 48 and turntable 84 is suitably located so that if a small bowl has its base in the depression 84' of the turntable, it will be suitably lo ated about the beating elements 88, 88.

In this case. however, the beating elements work substantially the full cross-sectional area of the bowl and may be located centrally oi the small bowl. may be used, and by means of the present arraneement larger bowls may be .used than with any of he devices of the prior art. as the present motor drivin unit is pivoted at its end and overhan s the bowl by a greater amount than the devices of the prior art.

The column or standard 88 comprises a hollow. cast metal member, having a flat bottom edge 18, which engages the top flange 88 of the base 82, to which it is secured by screw bolts, as previously described.

The column 88 tapers toward the top, and by virtue of its enlarged bottom area provides a firmer engagement between the column and base.

At its upper end it is provided with an inwardly extending body 18, which is formed with an upwardly extending hook formation 11 surrounding apartially cylindrical groove 18.

, The groove 18 is adapted to receive the pivot pin 18 of the motor unit, and there is a suflicient clearance at 88 between the end of the block 11 and the surface H of the lug 18, so that the pin 18 may be removed from its groove 18 by an upward movement when the motor is in the proper position.

The standard is. also provided with a forwardly extending arm 84, forming an integral part of the standard, and bordered by the upwardly extendin border flange 88 on each side. The arm 84 is also reinforced by a pair of am metrically located reinforcing ribs such as, 81, which terminate in the ing 18, which bears the hook 11. The reinforcing ribs 81 are spaced laterally from each other and are provided with the tapered camming surfaces such as 88 for engaging a complementary lug 88 carried by the motor housing 88 (Fig. 2) for the purpose of effecting the positive alignment of the motor with the standard arm 84 when the motor is Various intermediate sizes of bowls in mixing position.

The standard is also provided with a flat seating surface at the juncture of the arm 84, and the main standard body 88, for supporting a retaining spring, which is provided with a pair of retaining arms and an attaching flange as more particularly described in the Patent .No. 2,262,912. The attaching flange is secured to the surface 8| by means of a screw bolt 88 which is threaded into a threaded bore in the standard. and the spring is preferably provided with a pair of upwardly extending arms carried by hairpin bends, one arm being located on each side of the pair of reinforcing flanges 81.

The motor housing 88 has its rear cover member 88 provided with a depending supporting bracket 88, which comprises a rear yoke 88 and a pair of forwardly extending flanges I88.

The flanges I88 and yoke 88 carry at their lower ends a pair of inwardly extending lugs to provide the supporting bracket 88 with suilicient body ,for carrying the pivot pin 18. The lugs I'8I are provided with registering bores for receiving the pivot pin 18, which comprises a cylindrical metal member having a slightly enlarged and knurled surface at one end, so that when it is driven into the bores it is flxedly secured in the supporting bracket 88.

The side flanges I88 of the motor-supporting bracket 88 are spaced from each other sufliciently so that they flt between the upwardly extending border flanges 88 on the upwardly extending arm 84 of the standard 88. Thus, when the motor is in the mixing position of Fig. 1, all of the details of construction and mechanism relating to the motor support between the motor and standard are enclosed in the housing which comprises the arm 84. flanges 88, and parts 88, I88.

The motor is flrmly supported on the standard and base, but may be very conveniently removed by merely iifting its pivot pin 18 out of the groove 18. when the bowl is to be removed, the

assmeo motor need only be tilted backward, where it will be held by the retaining spring '2, and the beating elements are then in position so that any drlpp drips back into the bowl 31.

Due to the support of the motor ii at its rear end, a muchlarger overhang is'provided, and larger bowls may be used with any of the devices of the prior art.

The turntable may readily have its bearing located for use with bowls of any of a plurality of different sizes. It is only necessary to push on the turntable when its trunnion is in the bearing, to cause the bearing carriage to move into the desired position. I

The present base and stand structure supports the motor at its rear end instead of a point midway between the ends, as in the devices of the prior art: and therefore the motormay be provided with a greater overhang, permitting the use of larger vessels.

While I have illustrated a preferred embodiment of my invention, many modifications may be made without departing from the spirit of the invention, and I do not wish to be limited to the precise details of construction set forth, but desire to avail myself of all changes within the scope of the appended claims.

1. In an electric food mixer, the combination of a base with a motor driving unit having depending beating means, a turntable for supporting a bowl, a track below the base, a bearing carriage slidably mounted on the track below said base. means securing said carriage in the track and bearing the load of the weight carried by said carriage a bearing carried by said carriage. a trunnion carried by said turntable and rotatably mounted in said bearing, whereby a bowl carried by said turntable may be moved to any of a plurality of different positions with respect to said beating means.

means for moving 2. In an electric food mixer, the combination of a base with a motor driving unit having depending beating means, a turntable for supporting a bowl, an elongated bearing carriage slidably mounted on said base, with a portion of its length concealed beneath the base and the remaining portion exposed upwardly through an elongated opening in the base a bearing carried by said carriage in the exposed portion, a trunnion carried by said turntable and rotatably mounted in said bearing, whereby a bowl carried by said tumtable may be moved rectilinearly to any of a plurality of diiferent positions with respect to said beating means, said carriage being provided. with spring detent means in said concealed portion for retaining it in a predetermined bowl position in cooperation withmeans concealed below the base.

3. A food mixer comprising a base, a support at one end of the base, a power unit detachably received upon the support in a predetermined nonadjustable position to overhang the base, a pair of agitators depending from the power unit spaced longitudinally of the base and power unit, a tumtable for supporting a mixing bowl in a position withthe agitators disposed therein when the power unit is in operative position, a slide upon said base movable in the line of the heaters, means for rotatably mounting the turntable upon the slide, said turntable constituting the sole the slide to vary the position of the bowl.

4. A device of the class described for supporting a bowl with respectto a pair oi agitators disposed in a predetermined plane comprising a base and support means for the agitators fixed with respect to the position of said agitators when the agitators are disposed in operating position said 

